Design and experimental study of longitudinal-torsional ultrasonic transducer with helical slots considering the stiffness variation

Li, Hongbo; Chen, Tao; Song, Han; Wang, Qihan; Ye, Junpeng

doi:10.1007/s00170-021-06802-3

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…In this way, better surface quality can be obtained compared with ordinary grinding [8,9]. Longitudinal-torsional composite vibration is widely used in many ultrasonic machining fields [10][11][12]. In the grinding process, it is beneficial to solve the problem of grinding wheel blockage and grinding burn, reduce the grinding force [13,14], and improve the grinding quality and grinding efficiency [15].…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Study of Longitudinal-Torsional Composite Ultrasonic Internal Grinding Horn

Zhang,

Jiao,

Niu

et al. 2023

Micromachines

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Longitudinal-torsional composite ultrasonic vibration has been widely used in grinding. This paper aims to solve the problem that the resonance frequency deviates greatly from the theoretical design frequency and the vibration mode is poor when the horn is matched with a larger tool head. This paper presents how the longitudinal-torsional composite ultrasonic conical transition horn was designed and optimized by the transfer matrix theory and finite element simulation. For this purpose, the spiral groove parameters were optimized and selected by finite element simulation. Then, the modal analysis and transient dynamic analysis of the horn with grinding wheel were carried out to verify the correctness of the theoretical calculation. The impedance analysis and amplitude test of the horn with grinding wheel were carried out. The test results were in very good agreement with the theoretical and simulation results. Finally, the grinding experiment was carried out. The surface roughness of the workpiece in longitudinal-torsional ultrasonic vibration grinding was obviously reduced compared to that of ordinary grinding. All these obtained results demonstrate that the designed longitudinal-torsional composite ultrasonic horn has very good operational performance for practical applications.

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